MensHealth.com decided to find out and has revealed what is on the iPhone home screens for some of its favorite athletes and celebrities. NASCAR stars Danica Patrick, boyfriend Ricky Stenhouse Jr. and five-time Sprint Cup champion Jimmie Johnson all made the list, which reveals some interesting secrets about their phone habits. Johnson tweeted a link to the story Wednesday.

Patrick’s home screen, for instance, features a photo of her giving Stenhouse, her new boyfriend, a kiss. Her favorite apps: ESPN, Yelp, Zagat, Pinterest and a dictionary.

“Yes, we scored dueling smartphones from the hottest couple in auto racing. … Like her BF, she’s deep into sports apps and social media. She’s a huge Bears fan, hence the ESPN app, and she uses Frametastic to make collages for her Twitter feed. She’s also a foodie — so Yelp and Zagat. Patrick digs Pinterest, but says she’s ‘new to it, so still a bit of a beginner.’ News and celeb dirt come via USA Today and US Weekly.”

Stenhouse’s home screen features a photo of Danica (of course), with such apps as: the Bible, Race Monitor and his sponsor, Best Buy.

Stenhouse told MensHealth about his phone.

“Safari — gotta be able to look up anything. Camera — love to document everything. Bible — read it and use it for our small group Bible study we do at the track. Music/iPod — mostly country. Word games — love to win, but need to be able to spell better. Social — gotta keep everyone informed on what's going on, at least the ones that want to know. Zillow — Love looking at houses and land. I'm looking for a place now. Best Buy — look at it to see what's new. Fifth Third — mobile banking. Race monitor — keep up on races when my sprint car team is out racing the dirt cars. Phone — rarely call people. Mail — all the time. Text — way too much. Photo: sent to me by my wonderful GF, wearing my favorite shirt.”

Johnson’s phone features several social media apps as well as apps to help with his fitness training. But it also features Donut Maker and Dora Ballet, presumably for his daughter, Genevieve.

Says MensHealth: “He’s hugely active on social media, and has a slew of photo apps and assorted social-media tools at his beck and call. But his iPhone comes in just as handy helping him stay in shape for both the triathlons he’s begun competing in as well as the constant strain of muscling racecars through turns at 200 mph.

“… By the way, Savant is a home security, lighting control, and energy monitor system, so Johnson can turn off his living-room lights from the back straight at Daytona if he wants to.”